The Black Cats will have to pay around £12m for Bent, who struggled to establish himself in Tottenham's first team last season following a big-money move from Charlton.
But Villa manager Martin O'Neill is also reported to have the striker on his list of targets and could finance a move if he finally agrees to sell captain Gareth Barry to Liverpool.
Barry could go to Liverpool for up to £18million, leaving Villa in a strong position to launch a major bid for Bent and their other transfer targets.
Sunderland chairman Niall Quinn predicted earlier in the week that there could be a domino effect in the transfer market as big deals start to go through, and Barry's switch to Anfield could be one of those moves.




